81240400

素因数分解:

$2^4\times 5^2\times {\mathrm{83}}^1\times {\mathrm{2447}}^1$

素因数の和:2548

約数の個数: 60

約数和(自身を含む): 197612352

約数和(自身を除く): 116371952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 83, 100, 166, 200, 332, 400, 415, 664, 830, 1328, 1660, 2075, 2447, 3320, 4150, 4894, 6640, 8300, 9788, 12235, 16600, 19576, 24470, 33200, 39152, 48940, 61175, 97880, 122350, 195760, 203101, 244700, 406202, 489400, 812404, 978800, 1015505, 1624808, 2031010, 3249616, 4062020, 5077525, 8124040, 10155050, 16248080, 20310100, 40620200, 81240400]

約数ペア:

[(1, 81240400), (2, 40620200), (4, 20310100), (5, 16248080), (8, 10155050), (10, 8124040), (16, 5077525), (20, 4062020), (25, 3249616), (40, 2031010), (50, 1624808), (80, 1015505), (83, 978800), (100, 812404), (166, 489400), (200, 406202), (332, 244700), (400, 203101), (415, 195760), (664, 122350), (830, 97880), (1328, 61175), (1660, 48940), (2075, 39152), (2447, 33200), (3320, 24470), (4150, 19576), (4894, 16600), (6640, 12235), (8300, 9788)]